Replace x in the given equation with each value:
a. f(4) = 2(4) -5
= 8-5
=3
b. (f-3) = 2(-3) - 5
= -6 -5
= -11
Distributive property says a(b+c)=ab+ac so
4(3x+2)=4(3x)+4(2)=12x+8
then add
12x+8-2
12x-6
it could also be 6(2x-1)
factor 20b-16
find the greatest common factor of both
20=2 times 2 times 5
16=2 times 2 times 2 times 2
GCF=2 tiemes 2=4
20b-16
undistribute 4 from each (divide each by 4)
4(5b-4)
The mean of the data set it 403
181 rounded to the nearest ten is the 200
